LED internal quantum efficiency and electro-optical efficiency principle and calculation
Date:2011-11-29 17:29
Status:Close
Question:ningcuidi
.9, interface is the air in contact with chips, its light refraction coefficient N0=1, laws can know from the theory of light propagation of light refraction, refraction coefficient of two different interface when you are not the same, under the reflection of light perpendicular to the interface functions are available to represent:
R（L）=[（N1-N0）/（N1+N0）]2100%
For GaAs related to air, there are,
R（L）=[（3.9-1）/（3.9+1）]2100%=35.02
In other words, photons are reflected back to GaAs mate
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